# N2NX: 1991 Arner Aubrey CHALLENGER II SPEC, registration cancelled 2013-09-19

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 19, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Arner Aubrey CHALLENGER II SPEC](https://openairdocs.org/model/arner-aubrey-challenger-ii-spec) (registry code 05676TD)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: CH20391CW0660
- Year built: 1991
- Type of aircraft: Fixed wing single engine
- Airworthiness: Experimental, amateur built
- Airworthiness date: December 20, 1991
- Certificate issued: April 29, 1999
- Last registry action: July 29, 2008
- Mode S code: A18E93
- Owner when cancelled: [Blumer Jim A](https://openairdocs.org/faa-owner/BLUMER%20JIM%20A)
- Location: [Glendale, AZ](https://openairdocs.org/faa-place/AZ/Glendale)
- Owner type: Individual
- Owner's area on the map: 33.5945° N, 112.1795° W: Placed by OpenAirDocs at the center of ZIP code 85304, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N2NX
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=2NX
- Page: https://openairdocs.org/deregistered/N2NX-2013-09-19

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Arner Aubrey CHALLENGER II SPEC: https://openairdocs.org/model/arner-aubrey-challenger-ii-spec.md

## NTSB investigations (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB FTW02LA150](https://openairdocs.org/ntsb/FTW02LA150), May 12, 2002: Aubrey Challenger II (N2NX), Lubbock, TX, substantial damage. Probable cause: The loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.
- [NTSB LAX98LA192](https://openairdocs.org/ntsb/LAX98LA192), Jun 7, 1998: Arner Challenger II S (N2NX), Pleasant Valley, AZ, substantial damage. Probable cause: Loss of engine power due to a loose spark plug wire cap caused by a broken spark plug retainer spring.

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20020512007929A](https://openairdocs.org/incident/20020512007929A), May 12, 2002: Amtr CHALLENGERII (N2NX), Lubbock, TX, No damage. (-23) On may 12, 2002, while operating near Lubbock Town and Country airport (F86), the aircraft reportedly lost power. The pilot initiated an emergency…
- [Accident 19980607013229A](https://openairdocs.org/incident/19980607013229A), Jun 7, 1998: Amtr CHALLENGER2 (N2NX), Pleasant Valley, AZ, Substantial damage. (.19) Lost powerl. Landed dry river bed on soft sand. Plug wire came off. Hydrostatic lock up stopped 2 cyl. Engine. On June 7, 1998, at 1230 hours mountain…

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